8,682 research outputs found
A Multi Hidden Recurrent Neural Network with a Modified Grey Wolf Optimizer
Identifying university students' weaknesses results in better learning and
can function as an early warning system to enable students to improve. However,
the satisfaction level of existing systems is not promising. New and dynamic
hybrid systems are needed to imitate this mechanism. A hybrid system (a
modified Recurrent Neural Network with an adapted Grey Wolf Optimizer) is used
to forecast students' outcomes. This proposed system would improve instruction
by the faculty and enhance the students' learning experiences. The results show
that a modified recurrent neural network with an adapted Grey Wolf Optimizer
has the best accuracy when compared with other models.Comment: 34 pages, published in PLoS ON
An evaluation of farm credit systems in the U.S.A. and Pakistan
"In modern farming, as in other businesses, the key to a satisfactory money income is a proper combination of productive assets, such as land, livestock, and machinery with available labor and managerial ability. The amount of capital a farm family controls, the terms and conditions under which it is obtained, and the way it is used determine in large degree the level of income. Lending institutions play very important roles in macro-financial policies. The government plays a direct role by establishing lending institutions (the Farm Credit System and the Farmers Home Administration) and otherlending programs in general. Both Federal and State governments play an indirect role through legislation and, in turn, through supervisory agencies such as the Federal Reserve System. Micro-finaneial aspects of agricultural finance pertains to the individual farm. It includes those parts of capital in farm management which relate to acquisition and use of capital in the farm business."--Introduction.Includes bibliographical references
Image Processing with Dipole-Coupled Nanomagnets: Noise Suppression and Edge Enhancement Detection
Hardware based image processing offers speed and convenience not found in
software-centric approaches. Here, we show theoretically that a two-dimensional
periodic array of dipole-coupled elliptical nanomagnets, delineated on a
piezoelectric substrate, can act as a dynamical system for specific image
processing functions. Each nanomagnet has two stable magnetization states that
encode pixel color (black or white). An image containing black and white pixels
is first converted to voltage states and then mapped into the magnetization
states of a nanomagnet array with magneto-tunneling junctions (MTJs). The same
MTJs are employed to read out the processed pixel colors later. Dipole
interaction between the nanomagnets implements specific image processing tasks
such as noise reduction and edge enhancement detection. These functions are
triggered by applying a global strain to the nanomagnets with a voltage dropped
across the piezoelectric substrate. An image containing an arbitrary number of
black and white pixels can be processed in few nanoseconds with very low energy
cost
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